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[S390] cio: ccw_device_online_store return -EINVAL in case of missing driver
authorSebastian Ott <sebott@linux.vnet.ibm.com>
Mon, 9 Aug 2010 16:12:52 +0000 (18:12 +0200)
committerMartin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com>
Mon, 9 Aug 2010 16:12:53 +0000 (18:12 +0200)
If no driver is attached to a device or the driver provides no
set_online/set_offline function, setting this device online/offline
via its sysfs online attribute will silently fail but return success.

This patch changes the behavior to return -EINVAL in those cases.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

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